Dallas Cowboys wide receiver Dez Bryant, left, misses a pass attempt in the end zone as he is pressured by Baltimore Ravens defensive back Chykie Brown in the second half of an NFL football game in Baltimore, Sunday, Oct. 14, 2012. Baltimore won 31-29. (AP Photo/Gail Burton) (Associated Press)

Dallas Cowboys wide receiver Dez Bryant, left, misses a pass attempt in the end zone as he is pressured by Baltimore Ravens defensive back Chykie Brown in the second half of an NFL football game in Baltimore,

Wide receiver Dez Bryant #88 of the Dallas Cowboys misses a catch in the end zone while being defended by defensive back Chykie Brown #23 of the Baltimore Ravens during the fourth quarter of the Cowboys 31-29 loss at M&T Bank Stadium on October 14, 2012 in Baltimore, Maryland. (Photo by Rob Carr/Getty Images) (Getty Images)

Wide receiver Dez Bryant #88 of the Dallas Cowboys misses a catch in the end zone while being defended by defensive back Chykie Brown #23 of the Baltimore Ravens during the fourth quarter of the Cowboys 31-29

Wide receiver Dez Bryant #88 of the Dallas Cowboys is hit by cornerback Cary Williams #29 of the Baltimore Ravens as he misses a two-point conversion that would have tied the game in the fourth quarter at M&T Bank Stadium on October 14, 2012 in Baltimore, Maryland. The Baltimore Ravens won, 31-29. (Photo by Patrick Smith/Getty Images) (Getty Images)

Wide receiver Dez Bryant #88 of the Dallas Cowboys is hit by cornerback Cary Williams #29 of the Baltimore Ravens as he misses a two-point conversion that would have tied the game in the fourth quarter at

Wide receiver Dez Bryant #88 of the Dallas Cowboys pulls in a pass over cornerback Cary Williams #29 of the Baltimore Ravens for a touchdown in the fourth quarter at M&T Bank Stadium on October 14, 2012 in Baltimore, Maryland. The Baltimore Ravens won, 31-29. (Photo by Patrick Smith/Getty Images) (Getty Images)

Wide receiver Dez Bryant #88 of the Dallas Cowboys pulls in a pass over cornerback Cary Williams #29 of the Baltimore Ravens for a touchdown in the fourth quarter at M&T Bank Stadium on October 14, 2012 in

Wide receiver Dez Bryant #88 of the Dallas Cowboys rushes the ball in front of free safety Ed Reed #20 of the Baltimore Ravens after catching a pass during the second half at M&T Bank Stadium on October 14, 2012 in Baltimore, Maryland. (Photo by Rob Carr/Getty Images) (Getty Images)

Wide receiver Dez Bryant #88 of the Dallas Cowboys rushes the ball in front of free safety Ed Reed #20 of the Baltimore Ravens after catching a pass during the second half at M&T Bank Stadium on October

Dallas Cowboys wide receiver Dez Bryant is questionable for Sunday's game at Carolina with a groin injury that forced him to miss Friday's practice, according to the team's injury report.

The questionable designation means there is a 50 percent chance Bryant will play. If he can't, the Cowboys (2-3) will be without their leading receiver and leading rusher in what tight end Jason Witten has termed a “pivotal game” for the struggling team.

Tailback DeMarco Murray, who has a team-high 330 rushing yards on 75 carries, is out with a sprained left foot sustained in last week's 31-29 loss at Baltimore.

Bryant leads Dallas in catches (34) and receiving yards (364) after snagging a career-high 13 passes for 95 yards with two touchdowns against the Ravens.

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Outside linebacker Anthony Spencer, who has missed the last two games with a pectoral injury, and backup center/guard Ryan Cook (hamstring) also are questionable. Spencer was limited in practice all week.

A fresh take: Despite its lofty defensive ranking, Dallas ranks next to last in the league in takeaways with four, including an NFL-worst one interception. Only Indianapolis (three) has fewer takeaways.

But Ryan found some humor in the situation.

“Obviously, we're not good at getting turnovers, so we're going to get takeovers this week,” he said. “We've changed the game, and I think we're going to do much better. So we're getting takeovers, and we're ready to go.”